The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
Free tracker included with every download this week
What Are The Best Vegetables For Weight Loss?
Vegetables are a cornerstone of any sustainable weight loss plan in the UK. They're nutrient-dense, low in calories, and high in fibre — all factors that support feeling fuller for longer. But when combined with lifestyle changes and, for eligible adults, prescription weight loss medication, vegetables become even more powerful. This guide covers the vegetables that work best for weight management and how they fit into an NHS-aligned approach.
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Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
Best Vegetables for Weight Loss & Prescription Options
The best vegetables for weight loss are those high in fibre and water content, low in calories, and nutrient-rich. Key choices include:
- Leafy greens — spinach, kale, lettuce, broccoli (almost zero calories, high fibre)
- Cruciferous vegetables — cabbage, cauliflower, Brussels sprouts (low calorie, filling)
- Peppers — red, yellow, green (vitamin C, low calorie, crunchy texture)
- Tomatoes — fresh or tinned (lycopene, low calorie, versatile)
- Courgettes and cucumber — high water content, minimal calories
- Root vegetables in moderation — carrots, beetroot (higher in natural sugars, portion control recommended)
For eligible UK adults, vegetables work best alongside weight management uk strategies including physical activity and, where appropriate, prescription options like Mounjaro or Wegovy. Try our free GLP-1 weight loss calculator to explore how medication may support your efforts alongside dietary changes.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
NHS Weight Loss Support & Prescription Medication Access
In the UK, nhs weight loss support includes dietary guidance emphasising vegetables, but for some adults, prescription medication may be recommended. Weight loss medication nhs services assess eligibility based on BMI and health conditions. Options include Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide) — all prescription-only and available through NHS specialist services or private prescribing following clinical assessment.
Adults with a BMI of 30 or above (or 27–29.9 with weight-related health conditions) may be eligible. Vegetables remain important whether using medication or not — they support satiety, provide essential nutrients, and complement any lose weight uk plan. Use our free BMI calculator to check your personal BMI and understand whether you might qualify for support through your GP.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
Are vegetables alone enough for weight loss?
Vegetables are essential but work best as part of a holistic approach including a calorie deficit, physical activity, and adequate sleep. For some adults, prescription weight loss medication prescribed through the NHS or private providers may also support weight management alongside lifestyle changes.
Which vegetables have the lowest calories?
Leafy greens (spinach, kale), cruciferous vegetables (broccoli, cauliflower), courgettes, and cucumber are virtually calorie-free. Peppers and tomatoes are also very low-calorie options. Root vegetables like potatoes are higher and require portion control.
How much vegetable should I eat daily for weight loss?
The NHS recommends at least 5 portions of fruit and vegetables daily as part of a balanced diet. For weight loss, filling half your plate with non-starchy vegetables at meals helps create satiety and supports a calorie deficit without restriction.
Can prescription weight loss medication replace healthy eating?
No. Prescription medications like Mounjaro and Wegovy work best alongside a reduced-calorie diet and increased physical activity. They support appetite regulation but don't replace the need for nutritious food choices including plenty of vegetables.
How do I access weight loss medication on the NHS?
Speak to your GP about referral to a specialist tier 3 weight management service in your area. You can also check eligibility privately through a UK-licensed prescriber following an online clinical assessment. Availability and waiting times vary by region.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.